department, homeland security, they all partake in the investigation of potential refugees. it's not an overnight process. despite all of this we act as if people can sort of join isis and stumble in to the united states through a refugee process. i agree we could do more and have greater intelligence in syria which would allow us to have greater insight before people come over. but we make sure that people are not terrorists before they come over. and we have to maintain our practice of letting people in when they're vulnerable and desperate. >> and let me bring a statistic to our attention, to both of you gentlemen. on sunday night, i had professor brian levin on the show. he made the point that since 9/11 this country has taken in about 784,000 refugees. and out of those there have been three individuals who are deemed to pose a threat. so ben, when you look at those numbers, when you just look at